The Historical Evolution Of The Veress Needle — From János Veress’s Invention To The Cornerstone Of Minimally Invasive Surgery

https://en.wikipedia.org/wiki/Veress_needle

Behind the brilliant achievements of modern minimally invasive surgery stands a pioneer from Hungary-Dr. János Veress. The Veress needle, ubiquitous in today's operating rooms, was not originally conceived for laparoscopy but to address the formidable challenges of treating pulmonary tuberculosis in the 1930s. To alleviate pneumothoraces in advanced TB patients, physicians required a method to periodically decompress the pleural space. However, conventional trocars lacked protective mechanisms, frequently lacerating the fragile lung parenchyma and causing iatrogenic injury. In 1938, Dr. Veress innovatively designed a puncture needle featuring a spring-loaded blunt stylet. Upon traversing the parietal pleura, the stylet deployed under spring tension, shielding the sharp tip and preventing direct lung penetration. This design was hailed as a major advancement in thoracic surgery.

As the wheel of history turned, laparoscopic technology emerged and matured in the latter half of the 20th century. The foremost challenge for surgeons was safely insufflating the closed abdominal cavity to create an operative "pneumoperitoneum." Early open-entry techniques (Hasson method), while safe, necessitated larger incisions, fascial suturing, and were time-consuming-ill-suited for rapid diagnostic laparoscopy. It was then that the medical community re-evaluated Dr. Veress's invention. Surprisingly, this "safety needle" from thoracic surgery proved ideal for abdominal access after modification-it could pierce dense abdominal wall layers while protecting intra-abdominal bowel and vessels via its spring mechanism upon entering the "empty" peritoneal cavity.

Thus, the Veress needle completed its historic transition from thoracic to general surgery. Over subsequent decades, the technology underwent critical iterations. Early needles lacked precise depth markings, forcing surgeons to rely on experience-a dangerous proposition in obese patients. Modern Veress needles feature clear centimeter-scale gradations. Lengths have diversified into a series ranging from 80 mm to 150 mm, accommodating varied patient morphologies and specific needs (e.g., pediatric or special positioning). Another pivotal evolution was the precise positioning of the Side Port. Initial designs featured a distal-only opening, frequently causing subcutaneous emphysema (gas in tissue planes) or gas embolism (gas in vessels). Modern designs strategically relocate the insufflation port approximately 1–2 cm proximal to the tip, creating a "safety window." Once the tip traverses the peritoneum, the side port rests securely within the abdominal cavity, ensuring CO₂ is delivered centrally, drastically mitigating complication risks.

Furthermore, material innovations propelled widespread adoption. Transitioning from carbon steel to medical-grade 304 and 316L stainless steel exponentially improved corrosion resistance, hardness, and biocompatibility. Coupled with modern precision manufacturing-CNC grinding and electropolishing-surface roughness plummeted to micrometer levels, significantly lowering insertion resistance. Today, whether in gynecological cystectomies, general surgical cholecystectomies, or urological nephrectomies, the Veress needle remains the gold standard for establishing pneumoperitoneum. It epitomizes the shift from "macrosurgery" to "microsurgery," representing the indispensable "first cut." Understanding its history reveals that every design nuance-from spring tension to side-port location-is the fruit of countless clinical experiences and technological refinements, unified by one core tenet: maximizing patient safety under blind conditions.